Rhodopseudomonas sulfidophila, nov. spec., a new species of the purple nonsulfur bacteria
Rhodopseudomonas sulfidophila, nov. spec., a new species of the purple nonsulfur bacteria
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嗜硫化红假单胞菌，11 月。
DOI：
10.1007/bf00409510
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
H. Veldkamp
中科院分区：
文献类型：
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作者：
T. Hansen;H. Veldkamp
从海洋滩涂中分离到一株新型光合紫色细菌。这一模式被描述为杜鹃花科的一个新种，并命名为Rhodopterium sulfidophila。细胞呈杆状，宽0.6 ~ 0.9 μ，长0.9 ~ 2.0 μ，靠极鞭毛运动。细胞分裂是通过二分裂进行的。光合膜系统为囊泡型。色素由细菌叶绿素a和类胡萝卜素组成，最有可能是类球蛋白。各种有机化合物可以在光照下厌氧利用。有机化合物在黑暗中有氧生长也是可能的。需要烟酸、硫胺素、生物素和对氨基苯甲酸作为生长因子。新物种需要2.5%（w/v）的氯化钠才能获得最佳生长。所有菌株均显示出对氢气、硫化氢和硫代硫酸盐的优异的异养生长。它们显示出非常高的硫化物耐受性。硫化物和硫代硫酸盐被氧化成硫酸盐，而没有元素硫的中间积累。新物种似乎是迄今为止分离出的最多功能的光合细菌类型之一。
SummaryFrom marine mud flats a new type of photosynthetic purple bacterium was isolated. This type is described as a new species of the Rhodospirillaceae and is named Rhodopseudomonas sulfidophila. The cells are rod-shaped, 0.6 to 0.9 μ wide and 0.9 to 2.0 μ long, and motile by means of polar flagella. Cell division occurs by binary fission. The photosynthetic membrane system is of the vesicular type. The pigments consist of bacteriochlorophyll a and of carotenoids, most probably of the spheroidene group. A wide range of organic compounds can be utilized anaerobically in the light. Growth on organic compounds aerobically in the dark is also possible. Niacin, thiamin, biotin and p-aminobenzoic acid are required as growth factors. The new species needs 2.5% (w/v) sodium chloride for optimal growth. All strains show excellent photolithotrophic growth on hydrogen, hydrogen sulfide, and thiosulfate. They show a remarkably high sulfide tolerance. Sulfide and thiosulfate are oxidized to sulfate without an intermediate accumulation of elemental sulfur. The new species seems to be one of the most versatile types of photosynthetic bacteria isolated thus far.